Fowler #1 (Pondera) Reservoir Report
Last Updated: December 5, 2025
Fowler #1 in Pondera, Montana, is a privately owned earth dam completed in 1909 for fire protection, stock, and small fish pond purposes.
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Summary
Located in Loma along Dead Indian Coulee, this dam stands at a height of 30 feet with a length of 525 feet, providing a storage capacity of 727 acre-feet and a normal storage of 420 acre-feet. The dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and is rated as having low hazard potential.
Despite its age, Fowler #1 remains in good condition with a "Not Rated" assessment. While there is no information available on the last inspection date or inspection frequency, the dam's emergency action plan (EAP) status is unknown. The dam does not have associated inundation maps, risk assessments, or risk management measures, but its location in Pondera County within the Omaha District suggests a commitment to water resource management and climate resilience. Overall, Fowler #1 serves as an important structure for local water resource management and wildlife habitat enhancement in the region.
Year Completed |
1909 |
Dam Length |
525 |
Dam Height |
30 |
River Or Stream |
DEAD INDIAN COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
30 |
Nid Storage |
727 |
Hazard Potential |
Low |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Marias River Near Chester Mt
|
249cfs |
Teton River Near Dutton Mt
|
83cfs |
Marias River Near Shelby Mt
|
305cfs |
Lake Creek Near Power Mt
|
30cfs |
Marias River Near Loma Mt
|
335cfs |
Missouri River At Fort Benton Mt
|
4720cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Fowler #1 (Pondera)